SEARCH FOR HEAVY STABLE PARTICLES

被引：74

作者：

SMITH, PF

BENNETT, JRJ

机构：

[1] Rutherford Laboratory, Chilton, Oxon

来源：

NUCLEAR PHYSICS B | 1979年 / 149卷 / 03期

关键词：

D O I：

10.1016/0550-3213(79)90006-3

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

A search is made for cosmic ray produced heavy stable particles of unit positive charge in terrestrial water. By electrolysis of 6000 litres of heavy water, small samples are produced with a heavy isotope enrichment factor 3 · 1011 relative to natural water. Comparison of enriched and unenriched samples in a sensitive mass spectrometer showed no evidence for new particles in the mass range 6 to 350 proton masses, giving upper concentration limits in natural water between 2 · 10-22 and 10-21 over most of the mass range. An experiment to improve this limit by a factor of 106 is in progress. © 1979.

引用

页码：525 / 533

页数：9